/*less中的多行注释，会被解析到css文件中*/
.box1 {
  width: 200px;
  height: 200px;
  background-color: #bfa;
}
.box1 .box2 {
  background-color: red;
}
.box1 .box2 .box4 {
  background-color: sandybrown;
}
.box1 .box3 {
  background-color: seagreen;
}
.box5 {
  width: 100px;
  height: 100px;
  background-color: #f2f2f2;
}
.box6 {
  width: 100px;
  height: 300px;
  background-image: url("box6/1.png");
}
.div7 {
  width: 300px;
  height: 300px;
}
.boxa {
  width: 200px;
  height: 100px;
  background-color: darkgoldenrod;
}
